{
"customLabelData": {
"aggregateType": "CHART_AGGREGATE_TYPE_UNSPECIFIED",
"columnReference": {
"name": "string"
},
"groupRule": {
"dateTimeRule": {
"type": "CHART_DATE_TIME_RULE_TYPE_UNSPECIFIED"
},
"histogramRule": {
"intervalSize": 0,
"maxValue": 0,
"minValue": 0
}
},
"sourceRange": {
"sources": [
{}
]
}
},
"placement": "DATA_LABEL_PLACEMENT_UNSPECIFIED",
"textFormat": {
"bold": true,
"fontFamily": "string",
"fontSize": 0,
"foregroundColor": {},
"foregroundColorStyle": {
"rgbColor": {},
"themeColor": "THEME_COLOR_TYPE_UNSPECIFIED"
},
"italic": true,
"link": {
"uri": "string"
},
"strikethrough": true,
"underline": true
},
"type": "DATA_LABEL_TYPE_UNSPECIFIED"
}